Today almost all manufacturers of dental materials in their certificates of quality of material give its chemical composition, mechanical properties, process ability in aesthetic characteristics while informations about thermal properties are not available.Within the work measurements of the thermal properties of five selected, in daily dental prac...

By Borut Kosec, Mateja Vodlan, Blaž Karpe, Aleš Nagode, Milan Bizjak, Igor Kopač, Alenka Pavlič, Igor Budak, Tatjana Puškar, Henry Taubmann, Mirko Gojić

FeCrAl alloys have good oxidation resistance at elevated temperature owing to the formation of a continuous Al2O3 surface film, which acts as an oxygen diffusion barrier. The aim of the present study was to investigate the early stages of protective oxide layer formation and its growth on specially prepared commercial FeCrAl alloys, Kanthal AF (K-A...

By Stojana Veskovič, Milan Bizjak, Blaž Karpe, Aleš Nagode, Samo Smolej, Janez Kovač, Gorazd Kosec

Shape memory alloys (SMAs) belong to the group of advanced functional materials for numerous technical applications. Among many known Cu-based shape memory alloys, Cu–Al–Mn ternary alloys are characterized by a combination of good shape memory properties and excellent ductility which makes them commercially attractive.In this work the C...

By Dragan Manasijević, Tamara Holjevac-Grgurić, Ljubiša Balanović, Uroš Stamenković, Radiša Todorović, Milan Gorgievski1, Mirko Gojić

In conducted research was made a characterisation of microstructure and powder NiCrAlY, before and after applying on the base material. Coating was carried out by using HVOF Diamond Jet procedure, which uses the kinetic energy of the metal particles produced by on explosion of combustible gases. Characterisation was based on chemical analysis of me...

By Milenko Rimac, Mirsada Oruč, Gorazd Kosec

The physical-mechanical properties of concrete with nanosilica were experimentally studied. Nanosilica in powder form was used as a partial replacement of cement at dosage of 3 and 6 wt.%. The experimental results show that the compressive strengths of concretes with nanosilica particles were all higher than those of reference concretes at ages 1, ...

By Adnan Mujkanović, Marina Jovanović, Amel Zahirović

Parameter monitoring and testing of explosive substances under certain conditions, as well as control of raw materials used in the production process, contributes to obtaining the finest quality product.The aim of this paper was to test the key parameters in the process of explosive production and compare the results with the standard (reference) v...

By Šefkija Botonjić, Azra Halilović, Irma Ramić

Rational choice and the use of appropriate packaging materials and types of packaging influence the preservation of the qualitative characteristics of the product as well as on the sustainability of the packaged content [1]. Based on testing the thicknesses of different types of materials, it is possible to make the right choice for packaging certa...

By Ajka Aljilji, Nebija Aljilji

Austempering is two steps heat treatment process that, when applied to ductile iron, produces components that have properties superior to those processed by conventional treatment. Depending to chosen heat treatment parameters different final properties of the casting are obtained. In this paper heat treatment parameters for producti...

By Hasan Avdušinović, Almaida Gigović-Gekić

Polymer bonded Nd-Fe-B magnets belong to the group of functional composite materials, which consist mainly of two components: a polymer binder (PPS, PA) and magnetic particles of Nd-Fe-B alloy. The appropriate amounts of polymer binder, magnetic powder and additives are compounded by the twin screw extruder into a compound, that can ...

By Mihael Brunčko, Peter Kirbiš, Ivan Anžel

The increase in energy prices in the world, then the realization of less dependence on energy imports, and in particular meeting the hierarchical concept of waste management as it is in the EU, including reducing emissions of greenhouse gases (GHG Greenhouse Gases) in accordance with the Framework Convention of the United Nations Convention on clim...

By Mahmut Jukić, Ifet Šišić